Bizarre Transmission-induced network bug, driver crapping out maybe?

[Chan Chung Hang Christopher]

> The tell-tale signs that this has happened are there: All my torrents
> are displaying 'Remaining time unknown, idle', and if I ping


> Motherboard is onboard, SIS190. This never happened with my Acer
> Aspire One via wireless, so I'm assuming its the driver/eth/board.
> 

realtek nic? Which version of Ubuntu? Hardy?